CN107329855A - Reduce the method and device of firmware information - Google Patents
Reduce the method and device of firmware information Download PDFInfo
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- CN107329855A CN107329855A CN201710487522.2A CN201710487522A CN107329855A CN 107329855 A CN107329855 A CN 107329855A CN 201710487522 A CN201710487522 A CN 201710487522A CN 107329855 A CN107329855 A CN 107329855A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1448—Management of the data involved in backup or backup restore
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1441—Resetting or repowering
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Abstract
The invention discloses a kind of method and device for reducing firmware information, methods described includes：When starting electronic equipment, the BIOS program of the electronic equipment is run, to enter operating system；If running the BIOS program enters thrashing, when there is BIOS stand-by programs, firmware information is reduced using the BIOS stand-by programs；If running the BIOS program into system success, after operating system is entered, and when there is BIOS stand-by programs, then the BIOS stand-by programs are updated according to the BIOS program.The embodiment of the present invention ensure that backed up BIOS program is newest BIOS program, and when reducing firmware information, also middle all settings can be recovered, but also the problem of BIOS stand-by programs being updated before operating system is entered caused by BIOS stand-by programs can not guide operating system can be avoided.
Description
Technical field
The present invention relates to firmware security technology area, more particularly to a kind of method and device for reducing firmware information.
Background technology
Firmware is a kind of software being embedded in hardware unit, refers to the equipment " driver " that device interior is preserved, and is led to
Firmware is crossed, operating system could realize the run action of particular machine according to the device drives of standard.In general, electricity is served as
Sub- equipment is most basic, the software of bottom work can just be referred to as the basic input/output on firmware, such as computer motherboard
System (Basic Input/Output System, BIOS).
When BIOS information is abnormal, it may result in and cannot be introduced into operating system, or even also can result in can not be just normally opened
Machine, it is more serious in the case of can not update BIOS, then can only take electronic equipment apart and change read-only storage (Read Only
Memory, ROM).In the prior art can be by the way that BIOS information be backuped in hard disk.When BIOS information leads to not just extremely
During normally opened machine, the BIOS information backed up in hard disk can be returned to by automatic Recovery Technology in ROM, so as to solve system
Can not normal boot-strap the problem of.The process of prior art backup is as follows：(1) when starting shooting, whether had backed up in detection hard disk
BIOS information；(2) if there is BIOS information in hard disk, directly operation bootstrap enters operating system；(3) if guiding into
Work(, then detect that BIOS information indicates with the presence or absence of upgrading, if in the presence of the BIOS information in backup harddisk, and in BIOS again
Upgrading mark is set up in information；(4) if guiding failure, when in the absence of liter pole marks will, the BIOS backed up in hard disk is called to believe
Breath is recovered, and when there is upgrading mark, is recovered with original BIOS information.
The backup method of prior art is only just backed up when BIOS information has more recent version, when progress BIOS letters
During the recovery operation of breath, original state can only be returned to, middle all settings will be unable to recover.
The content of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of reduction firmware that can be backed up in realtime to BIOS information
The method and device of information.
To achieve these goals, the embodiments of the invention provide a kind of method for reducing firmware information, including：
When starting electronic equipment, the BIOS program of the electronic equipment is run, to enter operating system；
It is standby using the BIOS when there is BIOS stand-by programs if running the BIOS program enters thrashing
Part programe reduction firmware information；
Succeed if running the BIOS program into system, after operating system is entered, and there ought be BIOS backup journeys
During sequence, then the BIOS stand-by programs are updated according to the BIOS program.
If preferably, running the BIOS program into system success, methods described also includes：
Verify whether the information of the BIOS program of the information of the BIOS program run with prestoring is consistent；
If inconsistent, the information of the BIOS program prestored according to the information updating of the BIOS program.
If preferably, running the BIOS program into system success, methods described also includes：
Verify that backup area whether there is BIOS stand-by programs；
If in the presence of, verify whether the BIOS stand-by programs are consistent with the BIOS program version stored in ROM memory,
If inconsistent, the BIOS stand-by programs of the BIOS program version updating backup area stored according to ROM memory；
If being not present, the BIOS program is backed up according to the BIOS program of operation.
Preferably, if running the BIOS program enters thrashing, methods described also includes：
Whether be stored with BIOS stand-by programs in detection backup area；
If in the presence of whether detect the BIOS stand-by programs is version after updating；
If so, then to the BIOS program reduce the operation of firmware information.
Preferably, detect the BIOS stand-by programs whether be update after version, including：
Obtain the check information of the BIOS stand-by programs of the backup area storage；
Whether the information of the BIOS program stored in the information and ROM memory of verifying the BIOS stand-by programs is consistent,
It is the version after updating if consistent.
Preferably, the information of the BIOS program includes the check value of the BIOS program；The BIOS stand-by programs
Information include the check value of the BIOS stand-by programs.
Preferably, the check value can be obtained by Cyclic Redundancy Algorithms.
The another aspect implemented according to the present invention, the present invention also provides a kind of device for reducing firmware information, including：
Starting module, is configured to, when starting electronic equipment, run the BIOS program of the electronic equipment, operate to enter
System；
Firmware restoration module, is configured to when running the BIOS program failure, and when there is BIOS stand-by programs, make
Firmware restoration is carried out with the BIOS stand-by programs；
First update module, is configured to when the operation BIOS program succeeds, and after into operating system, and ought deposit
In BIOS stand-by programs, then the BIOS stand-by programs are updated according to the BIOS program.
Preferably, described device also includes：
Authentication module, is configured to, when running the BIOS program success, verify the information of the BIOS program of operation
Whether the information of the BIOS program with prestoring is consistent；
Second update module, is configured to the BIOS program worked as the information of the BIOS program of operation and prestored
Information it is inconsistent when, the information of the BIOS program prestored according to the information updating of the BIOS program.
Preferably, the authentication module concrete configuration is：
Verify that backup area whether there is BIOS stand-by programs；
If in the presence of, verify whether the BIOS stand-by programs are consistent with the BIOS program version stored in ROM memory,
If inconsistent, the BIOS stand-by programs of the BIOS program version updating backup area stored according to ROM memory；
If being not present, the BIOS program is backed up according to the BIOS program of operation.
Compared with prior art, the embodiment of the present invention has the advantages that：The technical scheme of the embodiment of the present invention is worked as
When running BIOS program failure, and when there is BIOS stand-by programs, firmware restoration is carried out using the BIOS stand-by programs；When
The BIOS program success is run, and after into operating system, and when there is BIOS stand-by programs, then according to the BIOS
Program updates the BIOS stand-by programs, and so ensure that backed up BIOS program is newest BIOS program, and
When reducing firmware information, it can also recover all settings of centre but also the BIOS before operating system is entered can be avoided standby
The problem of BIOS stand-by programs being updated caused by part program can not guide operating system.
Brief description of the drawings
Fig. 1 is the flow chart of the embodiment one of the method for the reduction firmware information of the present invention；
Fig. 2 is the flow chart of the embodiment two of the method for the reduction firmware information of the present invention；
Fig. 3 is the schematic diagram in the region of the storage BIOS program of the method for the reduction firmware information of the present invention；
Fig. 4 is the schematic diagram of the embodiment one of the device of the reduction firmware information of the present invention；
Fig. 5 is the schematic diagram of the embodiment two of the device of the reduction firmware information of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
Fig. 1 is the flow chart of the embodiment one of the method for the reduction firmware information of the present invention, as shown in figure 1, the present embodiment
Reduction firmware information method, specifically may include steps of：
S101, when starting electronic equipment, runs the BIOS program of the electronic equipment, to enter operating system.
Wherein, electronic equipment can be set including electronics such as desktop computer, notebook computer, tablet personal computer, mobile phone and PDA
It is standby.
In the start process of electronic equipment, BIOS program can be performed to lead into operating system.
S102, if running the BIOS program enters thrashing, when there is BIOS stand-by programs, using described
BIOS stand-by programs reduce firmware information.
Specifically, during actual use electronic equipment, often for various reasons, for example, user is not using
When, poisoning intrusion etc., and it is abnormal BIOS program occur.Lead to not operating system of starting shooting or enter.At this moment, can detect is
It is no to there is BIOS stand-by programs, if it is present reducing firmware information using the BIOS stand-by programs.
S103, if running the BIOS program into system success, after operating system is entered, and it is standby when there is BIOS
During part program, then the BIOS stand-by programs are updated according to the BIOS program.
Specifically, the BIOS backups having in the prior art are before operating system is introduced into, just to start startup electronics and set
Standby, the BIOS program version of detection operation is the version updated, and just BIOS program is backed up, in this case, when
BIOS program can not guide operating system, then back up without in all senses；And after failure is guided, even if carrying out reduction firmware
The operation of information, is still that can not guide operating system.
The present embodiment, after operating system is successfully entered, then backs up run BIOS program, it is ensured that, backed up
BIOS program must can successful operation, can necessarily guide operating system.If there is exception in current BIOS,
Or the BIOS program after updating occurs situations such as can not guide operating system, as long as at this moment reducing firmware information, you can with reality
Now guide system.
In addition, the backup area of storage BIOS stand-by programs can be the HPA regions of hard disk.HPA is ATA and S-ATA specifications
Specified in hard disk a kind of characteristic.The hard disk of the characteristic is supported, can be instructed by some, by the final stage space of hard disk
Being arranged to the data of guard space after guard space, setting can not be accessed.If necessary to access guard space, it is necessary to which same use
ATA instruction unpack hard disk protection space.Therefore this characteristic of hard disk can be utilized to ensure that what is preserved is used for recovery automatically
The security of the BIOS data of BIOS module.
The technical scheme of the embodiment of the present invention, when there is BIOS stand-by programs, makes when running BIOS program failure
Firmware restoration is carried out with the BIOS stand-by programs；It is successful when running the BIOS program, and after into operating system, and work as
When there is BIOS stand-by programs, then the BIOS stand-by programs are updated according to the BIOS program, so ensure that and backed up
BIOS program be newest BIOS program, and when reducing firmware information, can also recover middle all settings and
The BIOS stand-by programs being updated caused by BIOS stand-by programs before entering operating system can also be avoided to guide behaviour
The problem of making system.
Fig. 2 is the flow chart of the embodiment two of the method for the reduction firmware information of the present invention, the reduction firmware of the present embodiment
The method of information further introduces technical scheme in further detail on the basis of above-described embodiment one.Such as Fig. 2 institutes
Show that the method for the reduction firmware information of the present embodiment specifically may include steps of：
S201, when starting electronic equipment, runs the BIOS program of the electronic equipment, to enter operating system.
Wherein, electronic equipment can be set including electronics such as desktop computer, notebook computer, tablet personal computer, mobile phone and PDA
It is standby.
In the start process of electronic equipment, BIOS program can be performed to lead into operating system.
S202, if run the BIOS program into system success, verify operation the BIOS program information with only
Whether the BIOS program information for reading storage in memory (Read Only Memory, ROM) is consistent；If inconsistent,
Perform step S203；Otherwise, then step S204 is performed.
Specifically, the present embodiment is stored with BIOS program information in BIOS ROM memories.Checking is currently run
Whether BIOS program is updated BIOS program, it is necessary to by the information of the BIOS program currently run and the BIOS prestored
The information of program is compared, and is then operated accordingly according to comparative result.
S203, the BIOS program information stored according to the information updating ROM memory of the BIOS program.
Specifically, if the information of the BIOS program stored in the BIOS program and ROM that currently run is inconsistent, illustrate to work as
The program of preceding operation is updated, and then the information of the BIOS program stored in ROM replaced with to the BIOS program currently run
Information.
S204, checking backup area whether there is BIOS stand-by programs；If in the presence of execution step S205；Otherwise, then perform
Step S207.
Specifically, if the information of BIOS program of the BIOS program currently run with being stored in ROM is consistent, illustrate current
The program of operation may be updated, then can normally run BIOS program, then be backed up according to actual conditions.In root
When being backed up according to actual conditions, first verify that and whether there is BIOS stand-by programs in backup area, according to BIOS stand-by programs
Situation is operated accordingly.
S205, verifies whether the BIOS stand-by programs are consistent with the BIOS program information stored in ROM memory；If no
Unanimously, then step S206 is performed, if unanimously, performing S211.
Specifically, step S205 includes：A, verify the BIOS stand-by programs information whether with prestore described in
The information of BIOS program is consistent；B, if inconsistent, the BIOS stand-by programs are updated according to the BIOS program.
If the information of the BIOS stand-by programs whether the BIOS program with prestoring information it is consistent, say
Bright BIOS stand-by programs have been newest BIOS stand-by programs, without being updated again；If it is inconsistent, explanation operation
BIOS program be updated BIOS program, it is necessary to be backed up again to it, that is, update the BIOS stand-by programs.
S206, the BIOS program stored according to ROM memory updates the BIOS stand-by programs of backup area.
Specifically, the BIOS program currently run can again be backed up.
S207, the BIOS program is backed up according to the BIOS program of operation.
S208, if running the BIOS stand-by programs that whether are stored with the BIOS program failure, detection backup area；If depositing
Then performing step S209；Otherwise, then step S210 is performed.
Specifically, when running the BIOS program failure, illustrate that the BIOS program currently run is present abnormal, at this moment should
Whether BIOS stand-by program, in order to carry out the operation for reducing firmware information if being stored with the detection backup area.
Whether S209, it is version after updating to detect the BIOS stand-by programs；If so, then performing step S210；Otherwise,
Perform step S211.
Step S209 includes：C, verifying the information of BIOS program of the information of the BIOS stand-by programs with prestoring is
It is no consistent, it is the version after updating if consistent.
Specifically, if there is BIOS stand-by programs in backup area, the information of the BIOS stand-by programs is detected, to determine
Whether BIOS stand-by programs are newest BIOS program.The method of checking can include：Verify BIOS stand-by programs information with
Whether the information of the current BIOS program for wanting operation is consistent.
S210, to the BIOS program reduce the operation of firmware information.
Specifically, BIOS stand-by programs can be copied in BIOS ROM, then runs the BIOS journeys in BIOS ROM
Sequence, to guide operating system.
Wherein, the information of above-mentioned BIOS program includes the check value of the BIOS program；The letter of the BIOS stand-by programs
Breath includes the check value of the BIOS stand-by programs.If the two version is consistent, check value and the BIOS backup journeys of BIOS program
The check value of sequence should also be as being consistent.
Wherein, check value can be obtained by CRC algorithm (Cyclic Redundancy Check, CRC).Circulation
Redundancy check is a kind of a kind of hash that brief fixed digit check code is produced according to data such as network packet or computer documents
Function.Therefore, its crc value can be calculated according to BIOS program, its crc value is calculated according to BIOS stand-by programs, is then carried out
Compare.
In addition, as shown in figure 3, the region of BIOS ROM storage BIOS programs can be divided into program area, data field and check field.
Wherein, program area is used to store leader and other codes, and data field is used for data storage, and check field, which is used to store, to be verified
Value, can be crc value in the present embodiment.In the specific implementation, no matter the leader stored in program area and other codes
Change, or the data stored in data field change, and can cause crc value to change, it is necessary to re-start calculating.
In verification process, it is only necessary to which the crc value of the crc value in check field and BIOS stand-by programs is compared, to determine whether
Need to back up again.
The present embodiment only retains a BIOS program that is newest and can normally running in backup area, it is to avoid deposited in backup area
When storing up the BIOS program of multiple versions, the problem of can not being determined using which BIOS program when reducing firmware information.Meanwhile, it is right
Also do not limit, can both be stored with common hard disc, it would however also be possible to employ other are non-in the storage medium of storage BIOS stand-by programs
Volatile storage devices are stored.
S211, terminates operation BIOS program.
The technical scheme of the embodiment of the present invention is just backed up after operating system is led into, it is ensured that BIOS stand-by programs
Operating system can be guided；Meanwhile, this implementation is introduced type to the storage for storing BIOS stand-by programs and also not limited.
Fig. 4 is the schematic diagram of the embodiment one of the device of the reduction firmware information of the present invention, as shown in figure 4, the present embodiment
Reduction firmware information device, can specifically include starting module 41, the update module 43 of firmware restoration module 42 and first.
Starting module 41, is configured to, when starting electronic equipment, run the BIOS program of the electronic equipment, grasp to enter
Make system；
Firmware restoration module 42, is configured to when running the BIOS program failure, and when there is BIOS stand-by programs,
Firmware restoration is carried out using the BIOS stand-by programs；
First update module 43, is configured to when running the BIOS program success, and after into operating system, and work as
When there is BIOS stand-by programs, then the BIOS stand-by programs are updated according to the BIOS program.
The present embodiment reduction firmware information device, by using above-mentioned module reduce firmware information realization mechanism with
The realization mechanism of the method for the reduction firmware information of above-mentioned embodiment illustrated in fig. 1 is identical, may be referred in detail real shown in above-mentioned Fig. 1
The record of example is applied, be will not be repeated here.
Fig. 5 is the schematic diagram of the embodiment two of the device of the reduction firmware information of the present invention, the reduction firmware of the present embodiment
The device of information further introduces technical scheme in further detail on the basis of embodiment one as shown in Figure 4.
As shown in figure 5, the device of the reduction firmware information of the present embodiment, can further include：
Authentication module 51, is configured to, when running the BIOS program success, verify the letter of the BIOS program of operation
Whether the information for ceasing the BIOS program with prestoring is consistent；
Second update module 52, is configured to the BIOS journeys worked as the information of the BIOS program of operation and prestored
When the information of sequence is inconsistent, the information of the BIOS program prestored according to the information updating of the BIOS program.
The concrete configuration of authentication module 51 is：
Verify that backup area whether there is BIOS stand-by programs；
If in the presence of, verify whether the BIOS stand-by programs are consistent with the BIOS program version stored in ROM memory,
If inconsistent, the BIOS stand-by programs of the BIOS program version updating backup area stored according to ROM memory；
If being not present, the BIOS program is backed up according to the BIOS program of operation.
The present embodiment reduction firmware information device, by using above-mentioned module reduce firmware information realization mechanism with
The realization mechanism of the method for the reduction firmware information of above-mentioned embodiment illustrated in fig. 2 is identical, may be referred in detail real shown in above-mentioned Fig. 2
The record of example is applied, be will not be repeated here.
Above example is only the exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can make respectively in the essence and protection domain of the present invention to the present invention
Modification or equivalent substitution are planted, this modification or equivalent substitution also should be regarded as being within the scope of the present invention.
Claims (10)
1. a kind of method for reducing firmware information, it is characterised in that including：
When starting electronic equipment, the BIOS program of the electronic equipment is run, to enter operating system；
If running the BIOS program enters thrashing, when there is BIOS stand-by programs, the BIOS backups journey is used
Sequence reduces firmware information；
If running the BIOS program into system success, after operating system is entered, and when there is BIOS stand-by programs,
The BIOS stand-by programs are then updated according to the BIOS program.
2. according to the method described in claim 1, it is characterised in that described if running the BIOS program into system success
Method also includes：
Verify whether the information of the BIOS program of operation is consistent with the BIOS program information stored in ROM memory；
If inconsistent, the BIOS program information stored according to the information updating ROM memory of the BIOS program.
3. method according to claim 2, it is characterised in that described if running the BIOS program into system success
Method also includes：
Verify that backup area whether there is BIOS stand-by programs；
If in the presence of verifying whether the BIOS stand-by programs are consistent with the BIOS program information stored in ROM memory, if not
Unanimously, then the BIOS program stored according to ROM memory updates the BIOS stand-by programs of backup area；
If being not present, the BIOS program is backed up according to the BIOS program of operation.
4. according to the method described in claim 1, it is characterised in that described if running the BIOS program enters thrashing
Method also includes：
Whether be stored with BIOS stand-by programs in detection backup area；
If in the presence of whether detect the BIOS stand-by programs is version after updating；
If so, then to the BIOS program reduce the operation of firmware information.
5. method according to claim 4, it is characterised in that whether the detection BIOS stand-by programs are version after updating
This, including：
Obtain the check information of the BIOS stand-by programs of the backup area storage；
Whether the information of the BIOS program stored in the information and ROM memory of verifying the BIOS stand-by programs is consistent, if one
Cause then as the version after updating.
6. the method according to claim 2 or 4, it is characterised in that the information of the BIOS program includes the BIOS journeys
The check value of sequence；The information of the BIOS stand-by programs includes the check value of the BIOS stand-by programs.
7. method according to claim 6, it is characterised in that the check value can be obtained by Cyclic Redundancy Algorithms.
8. a kind of device for reducing firmware information, it is characterised in that including：
Starting module, is configured to, when starting electronic equipment, run the BIOS program of the electronic equipment, to enter operation system
System；
Firmware restoration module, is configured to when running the BIOS program failure, and when there is BIOS stand-by programs, use institute
State BIOS stand-by programs and carry out firmware restoration；
First update module, is configured to when the operation BIOS program succeeds, and after into operating system, and ought exist
During BIOS stand-by programs, then the BIOS stand-by programs are updated according to the BIOS program.
9. the device of reduction firmware information according to claim 8, it is characterised in that described device also includes：
Authentication module, be configured to verify when running the BIOS program success information of the BIOS program of operation with it is pre-
Whether the information of the BIOS program first stored is consistent；
Second update module, is configured to the information when the BIOS program of operation and the letter of the BIOS program prestored
When ceasing inconsistent, the information of the BIOS program prestored according to the information updating of the BIOS program.
10. the device of reduction firmware information according to claim 9, it is characterised in that the authentication module concrete configuration
For：
Verify that backup area whether there is BIOS stand-by programs；
If in the presence of verifying whether the BIOS stand-by programs are consistent with the BIOS program version stored in ROM memory, if not
Unanimously, then the BIOS stand-by programs of the BIOS program version updating backup area stored according to ROM memory；
If being not present, the BIOS program is backed up according to the BIOS program of operation.
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Cited By (4)
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| CN110874289A (en) * | 2019-09-23 | 2020-03-10 | 深圳市元征科技股份有限公司 | System program backup method, device, information processor and storage medium |
| CN110910944A (en) * | 2018-09-17 | 2020-03-24 | 爱思开海力士有限公司 | Apparatus and method for maintaining firmware in a memory system |
| CN111258817A (en) * | 2020-01-17 | 2020-06-09 | 深圳宝龙达信创科技股份有限公司 | Recovery method of basic input and output system, terminal equipment and storage medium |
| CN112579338A (en) * | 2020-12-30 | 2021-03-30 | 浪潮电子信息产业股份有限公司 | Starting method and system of equipment and storage medium |
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